Herbal Exhibition
Rhizoma Phragmitis
Reed Rhizome


The rhizome of Phragmites communis Trin. (Fam. Gramineae).

Mainly in Chinese provinces such as Anhui, Jiangsu, Zhejiang and Hubei.

Harvest & Processing
Dig out rhizomes anytime during the year; remove soil; cut away fibrous roots; cut rhizomes into sections; dry under the sun or use while fresh.

Fresh rhizome: Long and cylindrical, sometimes slightly flattened; varying in length, 1-2 cm in diameter. Outer surface yellowishwhite, lustrous; bark loose, can fall off. Nodes annular (ring-like), marked with root remnants and bud scars. Light in weight; pliable, does not break easily. Broken surface yellowish-white, hollow; wall 1-2 mm thick, with small pores arranged in a ring. Odourless; taste: sweet. Dried rhizome: Flattened, long and cylindrical. Outer surface lustrous, yellowish-white; nodes relatively hard, reddish-yellow; internodes marked with longitudinal wrinkles. Light in weight; soft and pliable. Odourless; taste: slightly sweet.

1. Polydipsia
2. Vomiting
3. Fever due to measles

Chemical Composition
Mainly contains p-hydroxybenzaldehyde, ferulic acid and tricin.



< Previous Herbal Exhibition index page Next>

The information and images in this Online Herbal Exhibition is form the book, "An Illustrated Chinese Materia Medica in Hong Kong", edited by Professor Zhao Zhongzhen, School of Chinese Medicine, Hong Kong Baptist University. For the complete collection of Chinese Materia Medica compiled by Professor Zhao, please go to this website: http://www.bucmm.org.

Copyright © 2005-2018 Consortium for Globalization of Chinese Medicine. All rights reserved.